#include <stdio.h>
#include <arpa/inet.h>

#include "internal/output.h"
#include "internal/stats.h"
#include "internal/tracker.h"

/* Forward declarations */
static void print_loss_line(size_t sent, size_t ok_recv, size_t errors);
static void print_rtt_line(const t_ping_stats *stats);
/* -------------------- */

void
ping_output_summary(const t_ping_state *state, struct in_addr dest)
{
	char	dest_str[INET_ADDRSTRLEN];
	size_t	sent;
	size_t	errors;
	size_t	ok_recv;

	inet_ntop(AF_INET, &dest, dest_str, sizeof(dest_str));
	sent = state->tracker->nb_sent;
	errors = state->nb_errors;
	ok_recv = state->tracker->nb_recv - errors;
	printf("--- %s ping statistics ---\n", dest_str);
	print_loss_line(sent, ok_recv, errors);
	if (0 < ok_recv)
		print_rtt_line(state->stats);
}

static void
print_loss_line(size_t sent, size_t ok_recv, size_t errors)
{
	int	loss_pct;

	loss_pct = (0 < sent) ? (int)((sent - ok_recv) * 100 / sent) : 0;
	if (0 < errors)
		printf("%zu packets transmitted, %zu received, +%zu errors,"
			" %d%% packet loss\n", sent, ok_recv, errors, loss_pct);
	else
		printf("%zu packets transmitted, %zu received, %d%% packet loss\n",
			sent, ok_recv, loss_pct);
}

static void
print_rtt_line(const t_ping_stats *stats)
{
	double	min_ms;
	double	max_ms;
	double	avg_ms;
	double	mdev_ms;

	ping_stats_get(stats, &min_ms, &max_ms, &avg_ms, &mdev_ms);
	printf("round-trip min/avg/max/mdev = %.3f/%.3f/%.3f/%.3f ms\n",
		min_ms, avg_ms, max_ms, mdev_ms);
}